Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
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BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Mon Nov 16 01:27:45 EST 2015
Host Name: bat1
Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger660671
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Trigger: 00660671 Segment: 000
BAT Trigger Time: 467083767.872 [s; MET]
Trigger Stop: 467083768.896 [s; MET]
UTC: 2015-10-21T01:29:12.571160 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 337.611486078815 Dec: -33.1989135771919 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.89
Image Trigger?: NO
Rate S/N Ratio: 35.028559776274 [ if not an image trigger ]
Image S/N Ratio: 6.89
Analysis Position: [ source = BAT ]
RA: 337.611486078815 Dec: -33.1989135771919 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 337.64732576254 Dec: -33.188926355189 [deg; J2000]
{ 22h 30m 35.4s , -33d 11' 20.1" }
+/- 0.953072280628945 [arcmin] (estimated 90% radius based on SNR)
+/- 0.305838480370022 [arcmin] (formal 1-sigma fit error)
SNR: 32.5790645789516
Angular difference between the analysis and refined position is 1.896638 arcmin
Partial Coding Fraction: 0.1054688 [ including projection effects ]
Duration
T90: 110.055999994278 +/- 3.59386366914112
Measured from: -15.2039999961853
to: 94.8519999980927 [s; relative to TRIGTIME]
T50: 36.3719999790192 +/- 1.13083329441536
Measured from: 0.675999999046326
to: 37.0479999780655 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: -0.131999969482422
to: 0.868000030517578 [s; relative to TRIGTIME]
Total Fluence
Measured from: -21.6200000047684
to: 127.424000024796 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 10.781857 15.186069 12.009707 3.691396
0.177256 0.198785 0.188483 0.148115 [error]
Peak 0.293533 0.355235 0.375000 0.129215
0.026112 0.031302 0.032684 0.024505 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
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====== Table of the duration information =============================
Value tstart tstop
T100 149.044 -21.620 127.424
T90 110.056 -15.204 94.852
T50 36.372 0.676 37.048
Peak 1.000 -0.132 0.868
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_index}
Ph_90err : 90% error of the photon index
Epeak : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.525 -0.037 0.037 - - - 1.95e-02 -3.69e-04 3.68e-04 37.100 57
CPL -1.523 -0.036 0.039 9999.360 -9999.360 -9999.360 1.95e-02 -3.40e-04 1.76e-03 37.180 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.420 -0.157 0.154 - - - 7.96e-02 -6.98e-03 6.94e-03 47.830 57
CPL -1.417 -0.159 0.265 9999.340 -9999.340 -9999.340 7.99e-02 -7.99e-02 2.84e-02 47.850 56
=== Fluence/Peak Flux Summary ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence PL 3.79e-06 6.86e-06 9.53e-06 2.76e-05 2.74e-05 4.78e-05 erg/cm2
90%_error_low -1.55e-07 -1.62e-07 -2.11e-07 -1.43e-06 -5.25e-07 -1.50e-06 erg/cm2
90%_error_hi 1.58e-07 1.61e-07 2.10e-07 1.48e-06 5.25e-07 1.54e-06 erg/cm2
Peak flux PL 3.04e+00 3.20e+00 2.39e+00 2.90e+00 9.74e+00 1.15e+01 ph/cm2/s
90%_error_low -4.54e-01 -2.96e-01 -2.69e-01 -6.31e-01 -8.39e-01 -1.02e+00 ph/cm2/s
90%_error_hi 4.76e-01 2.93e-01 2.65e-01 7.25e-01 8.40e-01 1.03e+00 ph/cm2/s
Fluence CPL 3.79e-06 6.85e-06 9.48e-06 2.91e-05 2.75e-05 4.77e-05 erg/cm2
90%_error_low N/A N/A N/A N/A -6.28e-07 -2.96e-06 erg/cm2
90%_error_hi N/A N/A N/A N/A 4.22e-07 1.48e-06 erg/cm2
Peak flux CPL 2.34e+00 1.51e+00 6.69e-01 4.86e-01 4.71e+00 4.98e+00 ph/cm2/s
90%_error_low -6.51e-01 -4.27e-01 -6.69e-01 4.16e-02 -1.33e+00 -1.40e+00 ph/cm2/s
90%_error_hi 6.33e-01 4.60e-01 2.86e-01 4.43e-01 1.32e+00 1.40e+00 ph/cm2/s
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